The personal and cumulative experiential knowledge of the education profession has been valued out of proportion to that which could be contributed by research. A comparison of education with agriculture provides a contrast showing the potential importance of the use of research in teacher education. Educational research is not as well developed…

An overview of research studies on the relationship among time factors and student achievement is presented. The California Beginning Teacher Evaluation Study is cited as a seminal work in this area. A brief summary of findings on allocated time, engaged time, and academic learning time includes a discussion on how these studies have been expanded…